“…Neuropsychological (Bhatia & Marsden, 1994;Laplane, Widlocher, & Pillon, 1981), human imaging (Schmidt et al, 2008;Pessiglione et al, 2007), lesion (Baunez, Dias, Cador, & Amalric, 2005;Berridge & Cromwell, 1990), and pharmacological (Grabli et al, 2004) studies have shown the involvement of several BG structures in these processes. In monkeys, the reward-related activities observed in BG input structures, such as the striatum and the subthalamic nucleus (STN; Nougaret & Ravel, 2015;Lau & Glimcher, 2008;Darbaky, Baunez, Arecchi, Legallet, & Apicella, 2005;Samejima, Ueda, Doya, & Kimura, 2005;Ravel, Legallet, & Apicella, 2003;Apicella, Ljungberg, Scarnati, & Schultz, 1991;Hikosaka, Sakamoto, & Usui, 1989), as well as in output structures, such as the internal part of the globus pallidus (GPi) and the substantia nigra pars reticulata (SNr; Joshua, Adler, Rosin, Vaadia, & Bergman, 2009;Pasquereau et al, 2007), are thought to be partly supported by dopaminergic neurons' activity (Morris, Arkadir, Nevet, Vaadia, & Bergman, 2004;Satoh, Nakai, Sato, & Kimura, 2003;.…”